package soucesystemtest;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by pc-gong on 2017/2/23.
 */
public class BlankDisc implements CompactDisc {

    private List<String> tracks = new ArrayList<String>();

    public void setTracks(List<String> tracks) {
        this.tracks = tracks;
    }

    public void paly(int trackNumber) {
        System.out.println("playing"+trackNumber);
    }
}
